baber/WOPTO huggingface dataset:
Patent JP-H05341339-A (JP)
Title: Formation of periodic domain inversion structure
Inventor: MIYAGUCHI SATOSHI
IPC: G02F1/37
Filed: 1992-06-09
Abstract: PURPOSE:To provide a method for forming a periodic domain inversion structure suppressing the refractive index change of a substrate in a manufacturing process. CONSTITUTION:A first interdigital electrode 11 composed of plural first metallic tooth sections 11a stretching in parallel with each other and a second interdigital electrode 12 composed of plural second metallic tooth sections 12a disposed in parallel between a pair of the adjacent first metallic tooth section 11a are formed on a main surface of the substrate 1 consisting of a nonlinear ferroelectric substance. Then, the periodic domain inversion structure of the plural polarization inversion sections corresponding to either of the first and second interdigital electrodes 11, 12 is formed on the substrate by applying a voltage on the first and second interdigital electrodes 11, 12.
Patent JP-H11338185-A (JP)
Title: Powdery toner for forming image
Inventor: TANABE TETSUSHI
IPC: G03G9/087
Filed: 1998-05-29
Abstract: PROBLEM TO BE SOLVED: To obtain a powdery toner capable of forming a high quality stable image because the toner particles are uniformly charged by using nearly spherical toner base particles having a specified dispersity of particle diameter and an electrically conductive fine powder added to the surfaces of the toner base particles. SOLUTION: An electrically conductive fine powder is added to the surfaces of nearly spherical toner base particles to obtain the objective powdery toner. By the addition of the electrically conductive fine powder, appropriate electric conductivity is imparted to the toner particles so that the quantity of electric charges on the toner particles is made uniform. The particle diameter of the toner matrix particles is preferably 3-12 μm, further preferably 5-10 μm in consideration of the handleability of the toner and the resolution of an image. In order to ensure uniformity in the quantity of electric charges, the dispersibility of the toner base particles is preferably <=1.2. The toner base particles are formed by synthesizing polymer particles from a monomer and a polymn. initiator and coloring the polymer particles with a colorant.  The particle diameter can be regulated by controlling the polymn. conditions.
Patent JP-2000337396-A (JP)
Title: Double cardan type constant velocity joint
Inventor: TOMARU MASANORI
IPC: F16D3/32
Filed: 1999-05-28
Abstract: PROBLEM TO BE SOLVED: To prevent the generation of a rattle securely, regardless of the size and the direction of a vibration applied from the outer side. SOLUTION: To the rotation supporting part of an angle fitting member to a supporting plate, a sliding bearing which consists of a pair of bearing elements 49a is provided. To a pair of flat plates 50 and 50 to compose the bearing element 49a, a pair of swellings 52a and 52a are provided respectively. Each pair of swellings 52a and 52a are compressed elastically between the supporting plate and the angle fitting member. As a result, the generation of a rattle can be prevented.
Patent JP-S5772839-A (JP)
Title: Production of rigid foamed polyurethane
Inventor: YANAGISAWA TAKESHI
IPC: B29K75/00
Filed: 1980-10-25
Abstract: PURPOSE:To produce a rigid foamed polyurethane having a low foaming pressure and excellent in mechanical strength and heat-insulating property by a method wherein the foam density of a raw liquid discharged in the form of foams is set to be 0.08g/cm<3> or below, and the expansion ratio achieved after the discharging is set to be 2 times or below. CONSTITUTION:An isocianate component and a polyol component, which contains a catalyst for reaction, a foam controlling agent and the like mixed thereto, are contained respectively in pressure-resistant containers. A foaming agent which is a low-boiling compound and is a gas at ordinary temperature and ordinary pressure (e.g., dichlorodifluoromethane) is supplied in its liquid state into a pipe line extended from each of the containers, in such a manner that the foam density of the raw liquid to be discharged into a mold is adjusted at 0.08g/cm<3> or below. Then, the raw liquid prepared by mixing the two components to each other is discharged into the mold, is foamed at a secondary expansion ratio of 2 times or below and is hardened. The secondary foaming is induced by water which is normally contained in the polyol on in amount of about 0;05%. Since the foaming pressure is low, there is no need for special reinforcing materials and the operation is facilitated.
Patent JP-S5386186-A (JP)
Title: Supporting structure of crystal vibrator
Inventor: SUZUKI FUMINORI
IPC: H03H9/05
Filed: 1976-12-13
Abstract: PURPOSE:To increase the strength to the component of bending moment orthogonal to the longitudinal direction of a vibrator, prevent the contact between the vibrator and sealing tube and achieve the improvement in impact resistance by selecting the thickness and width of supporting members at a specific relation.
Patent JP-H08317917-A (JP)
Title: Blood drawing device
Inventor: SESEKURA TETSUYA
IPC: A61B5/15
Filed: 1995-05-25
Abstract: PURPOSE: To make it possible to reliably draw blood substantially without pain by disposing a suction means to suck skin by using decompression, a sticking means to stick a sticking member into skin, and a releasing means to separate the sticking member from the skin. CONSTITUTION: A decompression chamber 3 is abutted onto a blood drawing position, with a main body 1 held by a hand, wherein the skin is sucked, swollen, and engorged with blood by decreasing pressures in an upper air chamber 11 and a lower air chamber 12 at the same flowing acceleration to the same decompressed value. After lapse of a predetermined time period, decompression in the upper air chamber 11 is mitigated instantaneously, by which the decompression in the upper air chamber 11 is reduced, causing pressure difference to occur between the upper and low air chambers 11, 12 with a diaphragm 4 as a boundary, and a sticking needle 2 to move downward and abut the skin. Then, when the upper air chamber 11 is decompressed again to the same pressure as that in the lower air chamber 12, by which the pressure difference between the lower air chamber 12 and the upper air chamber 11 is removed, a supporting member 8 moves upward, and the sticking needle 2 is separated from the skin. Since the lower air chamber 12 is decompressed, blood is drawn from the damaged portion of the sucked skin.
Patent JP-H089817-A (JP)
Title: Muzzle
Inventor: TAKADA KIMIO
IPC: A01K25/00
Filed: 1994-06-30
Abstract: PURPOSE:To provide a muzzle with a basket part having a size adjustable to the size of the mouth of the dog. CONSTITUTION:A basket to be put on the mouth of a dog is composed of a basket main body 3 opening from the nose along the upper face and a nose- -top cover 4 covering the top opening of the basket main body and connected to the nose-tip part of the basket main body in a bendable state. The rear end of the nose-top cover is connected to the rear end of the opening on the basket main body through a belt 5 having adjustable length. A neck-winding belt 10 to be wound around the neck of the dog and having an adjustable length is attached to the rear end of the basket main body.
Patent JP-S63313820-A (JP)
Title: Manufacture of semiconductor device
Inventor: TSUNODA SHIGEYUKI
IPC: H01L21/30
Filed: 1987-06-16
Abstract: PURPOSE:To contrive improvement in positioning accuracy by a method wherein the shape of a conductive film is recognized from the rear surface of a semiconductor substrate, and a positioning work is conducted. CONSTITUTION:A conductive metal 4 is formed on the surface of a semiconductor substrate 5, and a conductive film 3 is formed thereon. Besides, a resistor 6 to be used to form the pattern of the conductive film 3 is spin-coated on the conductive film 3, the pattern mask 2 of the conductive film 3 recognizes the pattern shape using a microscope 1, the shape of the conductive metal 4 and the conductive film 3 is recognized by permeating infrared rays from the rear surface of the semiconductor substrate through the substrate 5 using an infrared ray microscope 7. Subsequently, the pattern mask 2 of the conductive film and the semiconductor substrate 5 are aligned. As a result, the positioning of the semiconductor substrate 5 and the pattern mask of the conductive film 3 can be performed accurately.
Patent JP-S5374349-A (JP)
Title: Phase synchronous circuit
Inventor: HATANAKA NORIAKI
IPC: H03L7/091
Filed: 1976-12-15
Abstract: PURPOSE:To achieve a phase synchronous circuit which controls the oscillation frequency of a voltage control oscillator based on the output voltage of a voltage holding circuit, and thus to avoid occurrence of the blind sector or gray zone which are caused by the delay of the logic gate group, thus ensuring an accurate phase synchronization.
Patent JP-H06340288-A (JP)
Title: Dirty matter collecting ship
Inventor: YOSHINAGA MASANORI
IPC: B63B35/32
Filed: 1993-05-31
Abstract: PURPOSE:To lighten a collecting device and improve collecting concentration, collecting rate and degree of purifying of water by providing a water passing path space released in the front and lower parts to an aqueous liquid, the collecting device for collecting dirty matters from the space, a throttle path space for throttling a liquid surface region and an air sending means for transferring the dirty matters on the liquid surface. CONSTITUTION:A floating plate 6 forming a water passing path space 14 has one end connected to both broad-sides of a stern 3 to be opened and closed and the other end projectingly bulging to a water region separated from both broad-sides of a bow 2 to put the lower part under the liquid surface and the upper part onto the liquid surface. The water passing path space 14 can be removed at will by a spanning beam 10. Also, dirty matters in the water passing path space 14 are throttled into a narrow path space 17 by a throttle path space 15. Air current from a jet nozzle 20 is ejected onto the liquid surface in the water passing path space 14 and floating-up dirty matters are condensed while being transferred toward the narrow path space 17 so that collected dirty matters are pumped up by a collecting device 18 to a purifying device of a hull.
Patent JP-H0444596-A (JP)
Title: Prebearing construction with ring-shaped pile and its device
Inventor: HIGUCHI YASUO
IPC: E21D9/04
Filed: 1990-06-11
Abstract: PURPOSE:To reduce excavated earth by rotating an internal cylinder and an external cylinder with crown metals to excavate natural ground, and by injecting solidifying material in a ring-shaped hole created with slime discharged with compressed air, to create a ring-shaped pile. CONSTITUTION:With compressed air to a pressure-applying tube 3, from a feed air pipe 5, an excavating machine 1 is timbered on a facing A by a bearing plate 2. After that, an internal pipe 6 and an external pipe 9 are rotated to be advanced, and with crown metals 7, 11 at the tip, a ring-shaped hole C is excavated, and from a water swivel 12, the compressed air is fed via a space B1 between an internal cylinder and an external cylinder, and from a space B2 between the external cylinder and natural ground, excavated earth is discharged as slime. After that, a port-tip packer 13 is set at the facing A and is moved backward at the same time as the internal pipe 6 and the external pipe 9 are rotated, and from the swivel 12, solidifying agent is injected into the ring-shaped hole C, and a ring-shaped pile is created. As a result, the using quantity of the solidifying agent can be reduced.
Patent JP-S6212747-A (JP)
Title: Production of diallyl ester
Inventor: UCHIDA HIROSHI
IPC: C07C67/03
Filed: 1985-07-10
Abstract: PURPOSE:To industrially and advantageously obtain the titled compound useful as a crosslinking agent, etc., by reacting a dialkyl ester of an aromatic dibasic acid with (meth)allyl alcohol in the presence of an alkali metal (hydrogen) carbonate as an ester interchange reaction catalyst. CONSTITUTION:A dialkyl ester of an aromatic dibasic acid is reacted with allyl or methallyl alcohol to synthesize di(meth)allyl ester of the aromatic dibasic acid. In the process, a carbonate or hydrogencarbonate of an alkali metal is used as an ester interchange reaction catalyst. Examples of the catalyst include lithium carbonate, sodium carbonate, potassium carbonate and the like. The reaction is carried out within 50-250 deg.C, preferably 80-200 deg.C range under normal - higher pressure, preferably in an inert gas atmosphere.
Patent JP-H01319469-A (JP)
Title: Production of 4-(3,4-dimethoxy-6-methyl-2,5-benzoquinonyl)-4-phenyllactic acid amide derivative
Inventor: TATSUOKA TOSHIO
IPC: C07D295/10
Filed: 1988-06-20
Abstract: PURPOSE:To inexpensively and efficiently obtain the subject substance from 2,3-dimethoxy-5-methyl-1,4-hydroquinone and gamma-phenyl-gamma-butylolactone which are raw materials by each using trifluoromethanesulfonic acid as an acid and manganese dioxide as an oxidant. CONSTITUTION:2,3-Dimethoxy-5-methyl-1,4-hydroquinone is condensed with gamma-phenyl-gamma-butylolactone, preferably at equivalent molar ratio in the presence of trifluoromethanesulfonic acid at 0-50 deg.C. Then the condensed product is treated with triethylamine, preferably of 1.2mol equivalent and acetic anhydride, preferably of 1.0mol equivalent to afford 8,9-dimethoxy-7-hydroxy-6-methyl-5- phenyl-2,3,4,5-tetrahydro-1-benzoxepin-2-one, which is then condensed with morpholine or thiomorpholine and oxidized with manganese dioxide to provide the compound expressed by the formula (X is O or S).
Patent JP-H11345156-A (JP)
Title: Method and system for automatically controlling commitment instruction issue interval
Inventor: NOMURA TAKAAKI
IPC: G06F12/00
Filed: 1998-05-29
Abstract: PROBLEM TO BE SOLVED: To provide a method and system for automatically controlling an interval for issuing a commitment instruction for committing information contained in the roll-back journal of a database system. SOLUTION: This method has a step for measuring the conditions utilizing the resources of the roll-back journal in the database system, a step for discriminating the condition utilizing the resources of the roll-back journal and for transmitting the discriminated result, a step for receiving the discriminated result, a step for setting the commit issue interval based on the received discriminated result, a step for issuing the database updating instruction, and a step for counting the number of database updating instructions and issuing the commit instruction, when the number of database updating instructions becomes the commit issue interval.
Patent JP-S635306-A (JP)
Title: Optical demultiplex element
Inventor: HONMO HIROSHI
IPC: G02F1/035
Filed: 1986-06-25
Abstract: PURPOSE:To divide optical signals having narrow wavelength intervals with a small extinction ratio, by installing a means which gives an optical loss to at least one of two optical waveguides. CONSTITUTION:When multiplexed optical signals lambda1 and lambda2, whose wavelengths are about 1.55mum and wavelength intervals are about 0.1nm, are inputted, the optical signal lambda1 and lambda2 are branched at a ratio of about 1:1 by means of an optical coupler 3 and propagated to two optical waveguides 2a and 2b having different optical paths. Since the optical waveguides 2a and 2b have different optical paths, radii of curvature, etc., their propagation losses are different from each other and, as the waveguide 2b has a longer optical path and smaller radius of curvature as compared with the other waveguide 2a, the propagation loss of the wavelength 2b is larger than that of the other waveguide 2a by about 1dB. Therefore, the optical signals lambda1 and lambda2 propagated through the optical waveguide 2b become smaller in power than those propagated through the other waveguide 2 by about 1dB. Accordingly, a voltage of about 10V is impressed across electrodes 4 and sothat the specific refractive index of the optical waveguide 2a' can be made smaller and the radiation mode can be made larger. Thus the powers of the optical signals lambda1 and lambda2 propagated through the optical waveguides 2a are made smaller by about 0.5dB so as to make the difference in propagation loss between the two optical waveguides 2a and 2b smaller by about 0.5dB.
Patent JP-S5673538-A (JP)
Title: Manufacture of porous gell
Inventor: SATOU MAKOTO
IPC: C03B37/016
Filed: 1979-11-21
Abstract: PURPOSE:To prevent the entry of impurities and increase the rate of glass synthesis by hydrolyzing metal alkoxide while applying voltage from the electrode provided in a raw material soln. thereby manufacturing a gellike porous material. CONSTITUTION:At the time of manufacturing a porous gel of a glass base material for optical fibers or the like, the raw material soln. mixed with metal alkoxide, alcohol and water is gelled while 1-200V voltage is being applied from the electrode provided in this soln. Then, the rate of formation of sol and gel increases and gel formation tiem shortens; therefore, the entry of impurities from the vessel is prevented and glass is synthesized rapidly.
Patent JP-S5577343-A (JP)
Title: Fixing device of motor
Inventor: SAKAI TAKAYUKI
IPC: H02K5/00
Filed: 1978-12-06
Abstract: PURPOSE: To thin the thickness of the fixing plate, to make the welding of the plate easy and to increase the intensity of fixation by making the shape of leg to fix the motor housing to the external supporter of T-shaped or two-combined-L-shaped.  
     CONSTITUTION: A fixing plate 62 perpendicular to the welding plate 61 is formed to fix the motor housing 5 to the external supporter 8, a long hole 63 is pierced, the pierced part 64 is extended on the extension of the welding plate plane, the pierced part 64 and welding plate 61 are welded to the motor housing. Two L-shaped plates in which round fixing holes 63 are pierced can be combined to use themselves as a fixing leg. In this way, the intensity of welding can be increased and the thickness of plate can be made less since the welding positions are provided to both sides of the fixing plate. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S6044191-A (JP)
Title: Device for adjusting automatically spacing of torch nozzle for laser cutting machine
Inventor: KITAMURA KOUICHIROU
IPC: B23K26/02
Filed: 1983-08-19
Abstract: PURPOSE:To maintain a specified spacing between torch nozzle and a material to be cut and to finish the cut surface to a specified condition by supporting the nozzle on the surface of said material via a mechanical balancing means. CONSTITUTION:A torch nozzle 3 is stably supported on the surface of a material 9 to be cut by means of supporting legs 11 via rollers 10. The nozzle 3 is provided freely vertically slidably to a cutting head 1. The head 1 and the legs 11 are connected alongside the head by means of a cylinder device 12 for balancing. The legs 11, i.e., the nozzle 3 are held under weight balance through a rod 16 by the force of springs 17, 18 built in the cylinder 13. Even if the surface of the material 9 in the cutting position is curved, the rollers 10 roll along such surface and the spacing between the nozzle 8 of the nozzle 3 and the material 9 is maintained constant.
Patent JP-S6044695-A (JP)
Title: Cryostat
Inventor: NIWA RIICHI
IPC: F17C3/02
Filed: 1983-08-19
Abstract: PURPOSE:To simplify substantially the execution of a cryostat by mounting a roof on the upper portion of a plurality of concrete side plates provided on the inner peripheral surface with heat insulating materials and membranes and fastening the adjacent side plates to each other with a prestressed steel wire to form a tank barrel. CONSTITUTION:After compression resisting heat insulating materials 6 are incorporated in the inner peripheral surface of a side plate 5 of a reinforced concrete planer plate, they are laminated biased to mesh with a bottom plate 2 and other side plate 5. A membrane similar 7 a membrane 4 is bonded to the surface of said material 6 to assemble a side wall element. The side wall elements are combined with each other on the bottom plate 2 to provide a peripheral wall of a tank, and a prestressed steel wire 9 is tensioned and inserted between the adjacent side plates 5 to close a membrane corner with a corner piece. A roof 11 has an heat insulating material 12 and the membrane 7' laminated and is tightly fixed to the side plate 5 by a prestressed steel wire 14 inserted into a holes for the prestressed steel wire in the side plate 5 and the bottom plate 2.
Patent JP-S5672527-A (JP)
Title: Parallel analog-to-digital converter
Inventor: INOUE MICHIHIRO
IPC: H03M1/36
Filed: 1979-11-19
Abstract: PURPOSE:To obtain an A/D converter of high accuracy without deteriorating its high speed property, by correcting the reference voltage of the comparator at proper internals, by means of the reference voltage source which has been provided separately. CONSTITUTION:The second reference resistors r1-r8 are provided in parallel with the first reference resistances R1-R1023. And when one input of the current amplifying circuit D1 is connected to the point A, the other input is connected to the point A', and also the output terminal is connected to the point A', the current of the reference resistances R1-R1023 can be controlled so that the potential of the point A becomes equal to that of the point A'. The circuit D2 is also performed in the same way. In this case, since the maximum errors is proportional to approximately square of quantitizing number, the error becomes extremely small in case when the quantitizing number has been divided into eight.
Patent JP-S6130078-A (JP)
Title: Microwave high-output transistor
Inventor: ANRAKU HIROYUKI
IPC: H01L29/812
Filed: 1984-07-20
Abstract: PURPOSE:To enable a microwave high-output transistor to operate without causing oscillation over a wide band, by forming a resistance layer region directly below a gate electrode so that the region extends through the substrate, and connecting the gate electrode to the ground potential through this resistance layer region. CONSTITUTION:A source electrode 2, a gate electrode 3 and a drain electrode 4 are disposed on a high-resistance GaAs substrate, and an impurity-diffused layer 7 having a finite resistance is formed directly below the electrode 3. The layer 7 extends through the substrate to reach the reverse surface thereof. When the GaAsFET with this structure is mounted in a semiconductor element package, the electrode 3 is grounded through the layer 7. The resistance of the layer 7 can be set at an appropriate value by controlling the impurity concentration in the layer 7. In other words, the electrical resistance between the electrode 3 and the ground electrode enables the device to operate without oscillation over a wide band.
Patent JP-H07313825-A (JP)
Title: Honeycomb adsorbing body provided with filter
Inventor: KUMA TOSHIMI
IPC: B01D53/81
Filed: 1994-05-26
Abstract: PURPOSE:To prevent the deterioration of performance of a honeycomb adsorbing body due to dust deposition by mounting a filter formed by laminating a sheet having large dust collecting performance so as to form small holes having a shape easy to capture the dust and small in pressure damage closely or proximately to the end surface showing small holes of a honeycomb laminated body. CONSTITUTION:The filter 11 formed by laminating the sheet having large dust collecting performance so as to form the small holes easy to capture the dust is installed closely or proximately to the end surface showing the small holes of the honeycomb laminated body 1 having gas adsorptivity. The filter 11 is provided with the small holes having a smaller size and larger surface area per unit volume than that of the small holes of the honeycomb laminated body. And the filter 11 is formed by laminating the electrostatic-charged sheet. Further, the filter 11 is formed by laminating the sheet having a nappy surface. As a result, the deterioration of performance of the honeycomb adsorbing body due to the deposition of dust or the like is prevented for a long period.